compprob237 :
Do not assume that your power supply can provide the needed 365w total output. Especially if it's a few years old. A typical power supply can lose quite a bit of it's output as the capacitors inside age. The typical "heavy usage"/"old age" scenario assumes over 20-40% of output lost. I'd personally recommend upgrading the PSU before considering a GPU upgrade.
A simple Volts x Amps = Watts equation does not take in to account the internal limits of the power supply. On the label it states that the combined power of the 5V and 3.3V should never exceed 160w and the total output should never exceed 365w. Assuming a worst case scenario, you're left with ~205w. The "+12V" rail supplying power to the components (hard drives, cd drives, lights) and should be capable of <144w. The "CPU" +12v rail is capable of providing <174w. Given that this amount is used to power the CPU, motherboard, and motherboard-powered components (including GPU) you must determine if it is providing enough. The GTX 750 Ti will need <75w at full load on it's own. Factor in the motherboard requiring <=30w (Greatly depends on components and motherboard, could climb to as much as 200w) and the CPU using ~65w. This leaves you with ~79w overhead for the GPU. This should be just barely within the limits of the PSU.
The only issue is the age of the PSU. This system appears to be quite old (judging by the parts) and that age may become a problem. To be on the safe side I have to say: No, your PSU cannot run a GTX 750 Ti.
I didn't have that much stuff check again with compete specs :
PSU: hp 365 watts ,+5.08V 19a,+3.33V 24a,+12V 12a,+5.08V AUX 3a,-12V 0.15a,+12V cpu 14.5
Cpu: core 2 duo e8500 3.16ghz, usage : 65w max
Motherboard: hp 3032h, usage : maybe 30w max
Ram : 6gb ddr2, usage : ?w
HD Audio device : gets power from its plug usage : no psu power required.
Standard mouse and keyboard, Usage : ?w
Hard drive : 160gb hdd, interface sata, usage : ?w
DVD Rom, usage : ?w
Fans : 1 cup heat sink fan and other one is for cooling, usage : ?w
No other stuff available.
Hard drive pic :
http://www.mediafire.com/view/1q3d7saeu14fo09/image(3).jpeg
My pc pic :
http://www.mediafire.com/view/bgm3ylty22au7lo/image(2).jpeg
And about the age I will say old is gold!
For prove I have a 30 years used air cooler but it still works excellent just like new, prove 2 : I have a 20 years old tv too but it's graphics is better than Samsung led!
And thanks for replying.
😉